(NEW YORK) — One of the strongest geomagnetic storms of the year will create auroras in a large swath of the northern continental U.S., possibly even as far south as Oregon and Illinois.

The National Oceanic and Atmospheric Administration’s Space Weather Prediction Center is tracking four “notable” coronal mass ejections [CME] — a sudden eruption of plasma and magnetic fields from the Sun’s corona — that occurred between Monday and Wednesday.

At least one of the CMEs is expected to arrive late Thursday into early Friday as a strong G3 geomagnetic storm, according to NOAA.

Two dozen states could see the northern lights, NOAA’s viewline map shows: Alaska, Washington, Oregon, Idaho, Montana, Wyoming, North Dakota, South Dakota, Nebraska, Minnesota, Iowa, Wisconsin, Illinois, Michigan, Indi

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